The short answer to your question is: To view a PPT slideshow on a DVD, clearly it has to be in DVD-video format. Similarly, CD players will only play the audio component of the presentation (if contained).
Here is a guide on how to burn it as DVD-video using Windows Movie Maker.
gogings, you can use this PowerPoint to DVD program to help you: http://i'manidiot.comedited by ddp, it can convert and burn PowerPoint presentation to DVD disc with DVD menu brillantly, so you can watch PowerPoint slideshow on TV with DVD player.
The short answer to your question is: To view a PPT slideshow on a DVD, clearly it has to be in DVD-video format. Similarly, CD players will only play the audio component of the presentation (if contained).
Here is a guide on how to burn it as DVD-video using Windows Movie Maker.